User's Manual

Table Of Contents
520
Users Manual of CS-6306R
50.4.2.2 Configuring State-Refresh
The state-refresh control information of the PIM-DM is forwarded in management mode by default. The
configuration commands in interface configuration mode are effective only to the configurations at the
upstream ports when the first-hop switch directly connecting the source sends the state-refresh message
periodically. For the following switches, the interval is the period to receive and handle the state-refresh
message.
Command Purpose
no ip pim-dm state-refresh disable
Allows to send and receive the
state-refresh message on the port.
ip pim-dm state-refresh
origination-interval
Configures the interval to send and
receive the state-refresh message on
the port.
50.4.2.3 Configuring Filtration List
PIM-DM does not set the filtration list by default. The referred filtration list includes the neighbor filtration list
and the multicast boundary filtration list. The filtration list requires to be configured in interface configuration
mode.
To forbid a switch or switches at a network segment to join in the PIM-DM negotiation, the neighbor filtration
list need be configured. To forbid or permit some groups to pass the local region, the multicast boundary
filtration list need be configured.
Command Purpose
ip pim-dm neighor-filter
Configures the neighbor filtration list.
ip multicast boundary
Configures the multicast boundary
filtration list.
50.4.2.4 Setting DR Priority
To be compatible with IGMP v1, the DR choice is required. By default, the priority of the DR is set to 1. When
all PIM neighboring routers on the interface support DR Priority, the neighboring router with higher priority is
selected as the DR. If the priority is the same, the neighboring router with the maximum interface IP value is
selected as the DR. If the priority is not shown in the Hello message of multiple routers, the router whose
interface has the biggest IP value is selected as the DR.
Run the following command in interface configuration mode:
Command Purpose
ip pim-dm dr-priority
Configures the priority for the local DR
on the designated port.